AVR IR remote LED lamp

This project implements an infrared (IR) remote-controlled LED system using an AVR microcontroller. It allows users to adjust LED brightness and toggle RGB LED colors using a compatible IR remote control.

Features

• Adjust RGB LED colors with volume up and down commands.
• Control LED brightness with channel up and down commands.
• Turn off all LEDs with the power command.
• Smooth LED dimming achieved through software PWM.

Hardware Requirements

• AVR microcontroller (e.g., ATmega328P or Arduino uno)
• 1x IR receiver (VS1838B)
• 5x LEDs
  • 4x single-color
  • 1x RKGB
• 7x 330 Ohms resistors
• 1x IR remote control
• 1x Power supply (9V)

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For PCB

• 2x 20pf ceramic capacitors
• 2x 10uf 50V electrolytic capacitor
• 1x 16Mhz crystal osclilator
• 1x 100 Ohms resistors
• 2x 10k Ohms resistors
• 1x PCB mount DC jack
• 1x 28 pin IC socket
• 1x 1x5 Female header SIL
• 1x 7805 5V voltage regulator
• 1x ATMEGA328P IC

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Diagram

Prototype
PCB
Pinout

Software Requirements

• AVR-GCC toolchain
• AVRDUDE (for flashing the microcontroller)
• Required AVR libraries (included in the ./src/libs directory)
  • IRremote.h
  • softwarePWM.h
  • uart.h (Optional)

Installation

1. Connect the hardware components according to the schematic.
2. Clone this repository to your local machine.
3. Compile the source code using the AVR-GCC toolchain.

make all

4. Flash the compiled binary onto the AVR microcontroller using AVRDUDE.

make flash

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Build the docker image for easy toolchain deployment

1. Build the image

docker build -f Dockerfile -t avr-dev .

2. Run the container

docker run --rm -it --name avr-dev --device=/dev/ttyACM0 avr-dev

3. Flash

make flash

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Usage

1. Power on the system.
2. Point the IR remote control towards the IR receiver module.
3. Press the appropriate buttons on the remote control to control the LEDs:
   • Volume up/down: Change RGB LED colors.
   • Channel up/down: Adjust LED brightness.
   • Power: Turn off all LEDs.
4. LED status updates will be displayed via UART communication (if needed).

Notes

• Uncomment uart if needed.
• You may need to change command codes according to your IR remote, use uart to find your codes.
• Changing ports have to be changed in softwarePWM.h's channel sections.

References

• IRremote.h - Liviu Istrate
• softwarePWM.h - Liviu Istrate

Contributions

Contributions are welcome! Feel free to submit bug reports, feature requests, or pull requests.